ryuk | a032bc2be51f6a445d671a04d5fd081efb4514105f97545b3222d39666aa787e

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17-02-2024 14:36

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Report Analysis Logs

General

Target

2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe
Size

170KB
MD5

fba034cb2ee768fb4ff42cb71464980b
SHA1

7d7746b8c124621994c4d1a448234c005fa860df
SHA256

a032bc2be51f6a445d671a04d5fd081efb4514105f97545b3222d39666aa787e
SHA512

d6b8556191e009e1d279e11a90296eafee0609238867b7a2ffdb180a448e0d81e447c0c03498f35a067da03a97a5c07337e1c333a57e116f64b4b1d8d1e1c694
SSDEEP

3072:2HeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpnA:2+rA/WSo1rl3ALrlHQpnA

Score

10^/10

ryuk persistence ransomware

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note

Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe

Emails

[email protected]

Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Signatures

Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
ransomware ryuk

Detects command variations typically used by ransomware 44 IoCs

resource	yara_rule
behavioral1/memory/1252-2-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-3-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-17-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-20-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-18-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-22-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-25-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-27-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-30-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-34-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-36-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-37-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-40-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-41-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-43-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-45-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-46-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-48-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-53-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-56-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-59-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-61-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-64-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-65-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-72-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-75-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-76-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-77-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-70-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-83-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-88-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-86-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-68-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-90-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-92-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-97-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-100-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-102-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-105-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-108-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-111-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-115-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1252-2545-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/1328-3031-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Detects executables containing many references to VEEAM. Observed in ransomware 44 IoCs

resource	yara_rule
behavioral1/memory/1252-2-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-3-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-17-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-20-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-18-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-22-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-25-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-27-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-30-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-34-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-36-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-37-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-40-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-41-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-43-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-45-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-46-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-48-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-53-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-56-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-59-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-61-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-64-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-65-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-72-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-75-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-76-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-77-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-70-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-83-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-88-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-86-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-68-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-90-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-92-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-97-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-100-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-102-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-105-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-108-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-111-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-115-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1252-2545-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM
behavioral1/memory/1328-3031-0x000000013F6E0000-0x000000013FA6E000-memory.dmp	INDICATOR_SUSPICOUS_EXE_References_VEEAM

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchos = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe"	reg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.feature_3.9.1.v20140827-1444\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.equinox.p2.rcp.feature_1.2.0.v20140523-0116\META-INF\ECLIPSE_.RSA	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\META-INF\ECLIPSE_.RSA	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-core-multitabs.xml	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\VGX\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\bin\startNetworkServer	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Dhaka	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\jfr\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\tzmappings	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\ext\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-api-caching.jar	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Hand Prints.htm	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\VSTO\10.0\VSTOInstaller.config	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Title_Page_Ref.wmv	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\management\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Bangkok	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Kathmandu	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\about.html	taskhost.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\de-DE\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\performance.png	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\help.gif	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Triedit\es-ES\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Cayman	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Srednekolymsk	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\feature.xml	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\locale\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\hwritash.dat	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.e4.rcp_1.3.100.v20141007-2033\feature.xml	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_ja_4.4.0.v20140623020002\license.html	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\rectangle_postage_Thumbnail.bmp	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Buenos_Aires	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Honolulu	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Tarawa	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-sampler_zh_CN.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\org-openide-options.xml_hidden	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\gl.txt	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Genko_1.emf	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Antarctica\Palmer	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.core.ssl.feature_1.0.0.v20140827-1444\META-INF\eclipse.inf	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.apache.felix.gogo.shell_0.10.0.v201212101605.jar	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\16_9-frame-image-inset.png	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\cmm\PYCC.pf	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\com.jrockit.mc.rcp.product_5.5.0.165303\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-modules-profiler-selector-api.jar	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\db\3RDPARTY	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\META-INF\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-api-annotations-common_ja.jar	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cs.txt	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\it.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\.settings\org.eclipse.equinox.p2.metadata.repository.prefs	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\html\cpyr.htm	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\java.policy	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\.settings\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-progress-ui.jar	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\lt.txt	taskhost.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\MSInfo\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\highlight.png	taskhost.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\btn-back-static.png	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Majuro	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\SystemV\CST6	taskhost.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\RyukReadMe.txt	taskhost.exe
File opened for modification	C:\Program Files\7-Zip\Lang\mng2.txt	taskhost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 2740	1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe	28
PID 1276 wrote to memory of 2740	1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe	28
PID 1276 wrote to memory of 2740	1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe	28
PID 1276 wrote to memory of 1252	1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe	9
PID 2740 wrote to memory of 3040	2740	cmd.exe	30
PID 2740 wrote to memory of 3040	2740	cmd.exe	30
PID 2740 wrote to memory of 3040	2740	cmd.exe	30
PID 1276 wrote to memory of 1328	1276	2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe	8

C:\Users\Admin\AppData\Local\Temp\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\system32\reg.exe
    REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\2024-02-17_fba034cb2ee768fb4ff42cb71464980b_ryuk.exe" /f
    3⤵
    - Adds Run key to start application
    PID:3040

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1328

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
- Drops file in Program Files directory
PID:1252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\RyukReadMe.txt

Filesize
804B

MD5
cd99cba6153cbc0b14b7a849e4d0180f

SHA1
375961866404a705916cbc6cd4915de7d9778923

SHA256
74c43a177917b1d57ea2eaf6212ccf3b9012b4d68bc45284349443eed0bf5ee2

SHA512
0c9f250c0e2ec9736b072a9807b6c3bec4b670ab2f511e65cf5d79e9a8c9a209eb91736ce2765b52b6d94a57c6aa1c16bb08e16727660699b70608439c8b7cda

Download Submit
memory/1252-59-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-2545-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-2-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-61-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-20-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-18-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-22-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-25-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-27-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-30-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-34-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-36-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-37-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-40-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-41-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-43-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-45-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-65-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-48-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-53-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-56-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-0-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-17-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-3-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-46-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-72-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-75-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-76-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-77-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-70-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-83-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-88-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-86-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-68-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-90-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-92-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-97-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-100-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-102-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-105-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-108-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-111-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-115-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1252-64-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download
memory/1328-3031-0x000000013F6E0000-0x000000013FA6E000-memory.dmp

Filesize
3.6MB

Download